David Aguado, "Chasing the First Stars"

by David Aguado (Instituto de Astrofísica de Canarias (IAC))

Tuesday Jun 24, 2025, 11:30 AM → 1:30 PM Europe/Madrid

During Big Bang Nucleosynthesis, hydrogen, helium, and small traces of lithium and beryllium were produced. A few million years later, the first stars formed from this primordial material. Understanding their nature provides key insight into early star formation, the evolution of galaxies, and the yields of the first supernovae. These first stars, and especially their long-lived descendants, offer a unique fossil record — but they are extremely rare and difficult to find. In this talk, I will present recent advances in the search and characterization of these chemically primitive stars and their relevance to modern astrophysics.